When Siem picked up the violin, he said his parents couldn't get him to put it down. And he's still working to perfect his sound.

"You're always refining it, there are always ways you can work at. There are always ways you can get better," he said. "That's what makes me keep playing every day is the fact that I'm not quite there, you know. There's always more for me to be able to do."

For more with Siem and the story of his path to success, as well as the interest he's garnered from notable artists outside the world of classical music -- including The Who and Lady Gaga -- watch the video in the player above.